Fluid system having controllable reversible viscosity
US7119050B2 · kind B2 · utility
20Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Sep 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/86
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This Invention relates to methods of treating a subterranean hydrocarbons reservoir comprising contacting the formation with a treating fluid comprising an aqueous solution, an acid, a surfactant acting as gelling agent essentially consisting of erucylamidopropyl betaine (or a protonated/deprotonated homolog or salt thereof). The treating fluid may further comprise a lower n-alcohol for improved temperature stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.